15974470121 has 16 divisors (see below), whose sum is σ = 17369614080. Its totient is φ = 14633475840.

The previous prime is 15974470103. The next prime is 15974470133. The reversal of 15974470121 is 12107447951.

15974470121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 15974470121 - 2¹⁰ = 15974469097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15974470151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89390 + ... + 199848.

It is an arithmetic number, because the mean of its divisors is an integer number (1085600880).

Almost surely, 2^15974470121 is an apocalyptic number.

It is an amenable number.

15974470121 is a deficient number, since it is larger than the sum of its proper divisors (1395143959).

15974470121 is a wasteful number, since it uses less digits than its factorization.

15974470121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110704.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 15974470121 in words is "fifteen billion, nine hundred seventy-four million, four hundred seventy thousand, one hundred twenty-one".